Kay Jewelers Kay Jewelers Outlet Would not honor specific 50% off $99.99 coupon Blackwood New Jersey

I have a coupon for Kay Outlet Jewelers that was sent to my home in my name to use May 4-7 2017. We went today May 7 to use it. (It was a 50% off on 99.99) My purchase was $103.00. . The coupon would not work on this or any item that met the criteria for the coupon. The sales person just kept saying "it just won't take it in this, that, etc"- Nothjbg in store for $100 worked! . I told her it was false advertising & bad business practices to send unusable coupons or have the intention not to accept it or use it as a customer attendance ploy. After an hour of this, we left the store very upset & will not purchase from the Zales stores family (Zales Kay Jared) ever again & urge others to not fall for these fake coupons & intensional false advertising from them.